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Simple analog input and LCD 4 bit Example reading a LM35. Tested in BluePill board
main.cpp@2:93417af6f469, 2020-07-28 (annotated)
- Committer:
- dscarnatto
- Date:
- Tue Jul 28 09:20:47 2020 +0000
- Revision:
- 2:93417af6f469
- Parent:
- 1:e10c603cf0ae
first commit;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hudakz | 0:271d74b09d64 | 1 | /* Hello World! for the TextLCD Enhanced Library*/ |
dscarnatto | 2:93417af6f469 | 2 | //Probado en el BluePill 27/07/20 |
hudakz | 0:271d74b09d64 | 3 | |
hudakz | 0:271d74b09d64 | 4 | #include "mbed.h" |
hudakz | 0:271d74b09d64 | 5 | #include "TextLCD.h" |
hudakz | 0:271d74b09d64 | 6 | |
hudakz | 1:e10c603cf0ae | 7 | // Host PC Communication channels |
dscarnatto | 2:93417af6f469 | 8 | //Serial pc(PA_2, PA_3); // tx, rx |
dscarnatto | 2:93417af6f469 | 9 | AnalogIn LM35(PA_7); |
hudakz | 1:e10c603cf0ae | 10 | // LCD instantiation |
dscarnatto | 2:93417af6f469 | 11 | TextLCD lcd(PB_4, PB_3, PB_12, PB_13, PB_14, PB_15, TextLCD::LCD20x4); // 4-bit bus: RS, E, D4, D5, D6, D7 |
hudakz | 1:e10c603cf0ae | 12 | Timer t; |
hudakz | 0:271d74b09d64 | 13 | |
hudakz | 0:271d74b09d64 | 14 | int main() |
hudakz | 1:e10c603cf0ae | 15 | { |
dscarnatto | 2:93417af6f469 | 16 | //pc.printf("TextLCD Enhanced Test. Columns=%d, Rows=%d\n\r", lcd.columns(), lcd.rows()); |
dscarnatto | 2:93417af6f469 | 17 | lcd.printf("Funka locoso"); |
dscarnatto | 2:93417af6f469 | 18 | float tempC,tempF,a[10],avg; |
dscarnatto | 2:93417af6f469 | 19 | int i; |
dscarnatto | 2:93417af6f469 | 20 | lcd.locate(0,1); |
dscarnatto | 2:93417af6f469 | 21 | while(1) { |
hudakz | 0:271d74b09d64 | 22 | |
dscarnatto | 2:93417af6f469 | 23 | avg=0; |
dscarnatto | 2:93417af6f469 | 24 | //Toma 10 lecturas del LM35 |
dscarnatto | 2:93417af6f469 | 25 | for(i=0; i<10; i++) { |
dscarnatto | 2:93417af6f469 | 26 | a[i]=LM35.read(); |
dscarnatto | 2:93417af6f469 | 27 | wait(.02); |
hudakz | 0:271d74b09d64 | 28 | } |
dscarnatto | 2:93417af6f469 | 29 | //Calcula el promedio |
dscarnatto | 2:93417af6f469 | 30 | for(i=0; i<10; i++) { |
dscarnatto | 2:93417af6f469 | 31 | avg=avg+(a[i]/10); |
dscarnatto | 2:93417af6f469 | 32 | } |
dscarnatto | 2:93417af6f469 | 33 | //Ajusta conversion |
hudakz | 0:271d74b09d64 | 34 | |
dscarnatto | 2:93417af6f469 | 35 | tempC=(avg*3.685503686*100); |
dscarnatto | 2:93417af6f469 | 36 | tempF=(9.0*tempC)/5.0 + 32.0; |
dscarnatto | 2:93417af6f469 | 37 | //Imprime en LCD |
dscarnatto | 2:93417af6f469 | 38 | lcd.printf("Temp = %.0f C -> %.0f F\r\n", tempC,tempF); |
hudakz | 0:271d74b09d64 | 39 | |
dscarnatto | 2:93417af6f469 | 40 | wait(1); |
dscarnatto | 2:93417af6f469 | 41 | lcd.locate(0,1); |
dscarnatto | 2:93417af6f469 | 42 | } |
hudakz | 0:271d74b09d64 | 43 | } |